{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"520a0c6b0ad3","name":"RESERVOIR SIGHT GLASS + GASKET 12mm MASTER BRAKE CYLINDER","sku":"42-0220.12.FIR","brand":"Factory Image Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":93,"price":{"amount":2.36,"formatted":"£2.36"},"summary":"RESERVOIR SIGHT GLASS + GASKET 12mm MASTER BRAKE CYLINDER. Manufactured to OEM specifications for precise fitment. Resistant to wear and high-pressure braking systems. Ensures clear visibility of brake fluid levels. Installation instructions: Remove the old sight glass, metal ring, and rubber gasket. Drain and clean the reservoir. Place the provided rubber gasket in the sight glass hole. Insert the sight glass, ensuring it is flush and evenly aligned. Cover with a soft cloth and gently tap into place. Refill with brake fluid, bleed the brakes, and ensure proper functionality. Universal compatibility for master brake cylinders. Cross-Reference Numbers: 42-0220.12.AAA.","attributes":[{"label":"General Product Group","value":"Handlebar & Controls"},{"label":"General Product Type","value":"Master Cylinders & Rebuild Kits"},{"label":"Variant Id","value":"310167"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/42-0220_2E12_2EFIR/0ab872e8f51eb93b.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/42-0220_2E12_2EFIR/0ab872e8f51eb93b.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/42-0220_2E12_2EFIR/20114337d3ac01f4.jpg"],"description":"RESERVOIR SIGHT GLASS + GASKET 12mm MASTER BRAKE CYLINDER. Manufactured to OEM specifications for precise fitment. Resistant to wear and high-pressure braking systems. Ensures clear visibility of brake fluid levels. Installation instructions: Remove the old sight glass, metal ring, and rubber gasket. Drain and clean the reservoir. Place the provided rubber gasket in the sight glass hole. Insert the sight glass, ensuring it is flush and evenly aligned. Cover with a soft cloth and gently tap into place. Refill with brake fluid, bleed the brakes, and ensure proper functionality. Universal compatibility for master brake cylinders. Cross-Reference Numbers: 42-0220.12.AAA.","descriptionMarkdown":"### RESERVOIR SIGHT GLASS + GASKET 12MM MASTER BRAKE CYLINDER\n\nEnsure optimal brake performance with this 12mm Reservoir Sight Glass and Gasket, designed for master brake cylinders. Manufactured by Factory Image Racing, this component is crafted to OEM specifications, guaranteeing a precise fit and reliable functionality.\n\nThis universal replacement part is essential for maintaining clear visibility of your brake fluid levels, allowing you to easily monitor the health of your braking system. Its durable construction is resistant to wear and the high pressures encountered in braking systems, providing long-lasting service.\n\n#### Key Features:\n\n\t\n- 12mm Size: Specifically designed for master brake cylinders with a 12mm aperture.\n\t\n- Includes Gasket: Comes complete with a rubber gasket for a secure and leak-free seal.\n\t\n- OEM Specifications: Manufactured to meet original equipment standards for compatibility and performance.\n\t\n- Durable Construction: Resistant to wear and high-pressure braking systems for extended lifespan.\n\t\n- Easy Installation: Designed for straightforward replacement, ensuring minimal downtime.\n\t\n- Clear Fluid Level Visibility: Allows for quick and accurate checks of brake fluid levels.\n\n**Installation Guide:**\n\n\t\n1. Carefully remove the old sight glass, retaining ring, and rubber gasket.\n\t\n2. Drain any residual brake fluid and thoroughly clean the reservoir area.\n\t\n3. Position the new rubber gasket into the sight glass opening.\n\t\n4. Insert the new sight glass, ensuring it sits flush and is evenly aligned.\n\t\n5. Cover the sight glass with a soft cloth and gently tap it into place until fully seated.\n\t\n6. Refill the brake system with the appropriate brake fluid, bleed the brakes according to manufacturer guidelines, and verify proper operation.\n\n**Note:** Professional installation is recommended if you are uncertain about any part of the fitting process.","weightGrams":null,"fitments":[],"collections":[{"name":"Handlebar & Controls","url":"https://www.2brosparts.com/api/agent/collection/GB/handlebar-controls"},{"name":"Master Cylinders & Rebuild Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/master-cylinders-rebuild-kits"}],"links":{"page":"https://www.2brosparts.com/products/reservoir-sight-glass-gasket-12mm-master-brake-cylinder","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/520a0c6b0ad3:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/520a0c6b0ad3:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}